Electrostatic long-range and short-range interactions in linear poly(allylamine hydrochloride) chains |
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Authors: | G. M. Pavlov E. V. Korneeva I. I. Gavrilova N. N. Tarasova E. F. Panarin |
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Affiliation: | (1) Fock Research Institute of Physics, St. Petersburg State University, ul. Ul’yanovskaya 1, Petrodvorets, 198504, Russia;(2) Institute of Macromolecular Compounds, Russian Academy of Sciences, Bol’shoi pr. 31, St. Petersburg, 199004, Russia |
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Abstract: | The efficiencies of two azo initiators in the polymerization of allylamine salts in water and organic solvents were compared. The hydrodynamic and molecular characteristics of poly(allylamine hydrochloride) in 0.1 M NaCl in the molecular mass range M×10?3=18?65 were studied, and the scaling relationships were derived for the intrinsic viscosity ([η]=7.65×10?3 M 0.8±0.1), translational diffusion coefficient (D 0=2.41×10?4 M ?(0.59±0.05)), and velocity sedimentation coefficient (s 0=2.77×10?15 M 0.41±0.05). The hydrodynamic data were interpreted in terms of electrostatic long-range and short-range interactions. The equilibrium rigidity of poly(allylamine hydrochloride) chains in 0.1 M NaCl and its structural and electrostatic constituents were quantitatively estimated. It was shown that the conformation of poly(allylamine hydrochloride) chains in pure water is close to rodlike. |
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